Bibcode
Lewis, J. R.; Walton, N. A.; Meikle, W. P. S.; Martin, R.; Cumming, R. J.; Catchpole, R. M.; Arevalo, M.; Argyle, R. W.; Benn, C. R.; Bunclark, P. S.; Castaneda, H. O.; Centurion, M.; Clegg, R. E. S.; Delgado, A.; Dhillon, V. S.; Goudfrooij, P.; Harlaftis, E. H.; Hassall, B. J. M.; Helmer, L.; Hill, P. W.; Jones, D. H. P.; King, D. L.; Lazaro, C.; Lucey, J. R.; Martin, E. L.; Miller, L.; Morrison, L. V.; Penny, A. J.; Perez, E.; Read, M.; Rudd, P. J.; Rutten, R. G. M.; Sharples, R. M.; Unger, S. W.; Vilchez, J.
Bibliographical reference
Monthly Notices of the Royal Astronomical Society, Vol. 266, NO. 2/JAN15, P. L27, 1994
Advertised on:
1
1994
Citations
99
Refereed citations
87
Description
We present astrometric, photometric and spectroscopic observations of
supernova 1993J in M8 1, obtained with the Isaac Newton Group telescopes
and the Carlsberg Automatic Meridian Circle. The spectral data set
includes the first spectrum ever taken of SN1993J. The early spectra
also yield an estimate of the total visual extinction, Aν.
This is combined with the photometric data to produce a bolometric light
curve. Implications of the latter and of the spectral development are
also discussed. The spectral evolution includes an infrared excess,
which appeared after day 50 and may be indicative of an IR echo. The
unchanging nature of blueshifted oxygen lines in the spectra argues for
asymmetry in the distribution of the line-emitting region.